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Texas Instruments TPS2061DGN
- Part No.:
- TPS2061DGN
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2061DGN.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:635
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Product details
Overview
TPS2061DGN from Texas Instruments is a single-channel, current-limited, high-side power-distribution switch featuring a 70 mΩ N-channel MOSFET, 1 A continuous output current, thermal and short-circuit protection, and operation from 2.7 V to 5.5 V. It delivers controlled inrush current for USB-powered peripherals and hot-swap applications with heavy capacitive loads.
For engineers reviewing the TPS2061DGN datasheet, TPS2061DGN pinout, TPS2061DGN application, or TPS2061DGN equivalent, this page provides verified electrical parameters, validated HVSSOP-8 pin functions, real-world use cases in USB port protection and embedded power sequencing, and two confirmed alternative parts with documented functional differences.
Technical Context
The TPS2061DGN integrates an internal charge pump enabling gate drive at input voltages as low as 2.7 V, eliminating external components while maintaining precise 1.1–1.9 A current-limit accuracy. Its driver circuit controls rise/fall times (0.6 ms typical rise time) to suppress inrush surges and EMI during switching.
It employs a sense FET-rather than a shunt resistor-for overcurrent detection, preserving low forward voltage drop and minimizing power loss. Thermal shutdown activates at 135°C with 10°C hysteresis, and undervoltage lockout prevents operation below 2.0 V (rising threshold) with 75 mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1 A - supports stable power delivery to USB peripherals and microcontroller I/O rails without derating at 85°C ambient. |
| On-Resistance (rDS(on)) | 70 mΩ (typical @ 5 V) - limits conduction loss to ≤70 mW at 1 A, enabling compact thermal design in HVSSOP-8 package. |
| Current-Limit Threshold | 1.1 A min / 1.9 A max - ensures reliable trip margin across temperature and supply voltage for robust short-circuit response. |
| Rise Time (tr) | 0.6 ms typical (@ 5.5 V, 1 µF load) - soft-starts capacitive loads to prevent bus voltage droop and system reset events. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic domains, including battery-backed and dual-rail systems. |
| Standby Supply Current | ≤1 µA - enables ultra-low-power state retention in always-on subsystems such as wake-on-USB circuits. |
| Operating Temperature | -40°C to +85°C ambient - qualified for industrial and automotive cabin-temperature environments. |
Pinout & Package
HVSSOP-8 (DGN) package with exposed PowerPAD™ thermally connected to GND; requires PCB copper pour under package for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power input | Accepts 2.7–5.5 V supply; connects directly to source of internal N-channel MOSFET. |
| OUT | Switched power output | Delivers current-limited, protected power to downstream load; no reverse conduction. |
| EN | Enable input (active-high) | Logic high ≥2 V enables switch; logic low ≤0.8 V disables switch and reduces quiescent current to ≤1 µA. |
| OC | Open-drain overcurrent flag | Active-low signal pulled low during current limit or thermal shutdown; deglitched with 4–15 ms filter. |
| GND | Ground reference | Common return for power, control, and thermal path; PowerPAD™ internally tied to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in soft-start | 0.6 ms typical output rise time minimizes inrush current into 100 µF+ capacitive loads, preventing upstream rail collapse. |
| Accurate current limit | 1.1–1.9 A range ensures consistent fault response across voltage/temperature, avoiding nuisance trips or unsafe overload conditions. |
| Thermal and short-circuit protection | Auto-recovery thermal shutdown at 135°C plus immediate current limiting on shorts eliminates need for external fuses or reset logic. |
| UL listed (E169910) | Meets UL 60950-1 requirements for end-equipment safety certification without additional isolation components. |
| No OC glitch at power-up | Deglitched OC output prevents false fault assertions during input ramp-up, simplifying host MCU interrupt handling. |
Applications
| USB Port Protection | Industrial I/O Module Power Control |
|---|---|
Use Scenario: Protecting downstream USB devices from overcurrent events caused by cable faults or hot-plug insertion. IC Role / Device Role / Timing Role: High-side power switch placed between host VBUS and peripheral connector; enables/disables power under firmware control. Use Value: Prevents host port shutdown during short circuits, maintains system-level USB enumeration integrity, and eliminates manual fuse replacement. |
Use Scenario: Sequencing power to isolated sensor or actuator outputs in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Single-channel load switch controlling 3.3 V or 5 V I/O rail; coordinated via microcontroller GPIO with status feedback via OC pin. Use Value: Enables per-channel fault isolation, supports remote diagnostics via OC assertion, and avoids cascading failures across multiple I/O channels. |
| Embedded System Hot-Swap | Medical Device Peripheral Management |
Use Scenario: Safe insertion/removal of field-replaceable modules (e.g., communication cards) in powered-backplane systems. IC Role / Device Role / Timing Role: In-line power gate with controlled turn-on timing; OC signal used to confirm module readiness before firmware initialization. Use Value: Eliminates arcing and contact bounce damage, ensures clean power ramp for FPGA or ASIC configuration, and meets IEC 61000-4-2 ESD immunity requirements. |
Use Scenario: Managing auxiliary power to detachable patient-monitoring accessories (e.g., SpO₂ sensors, ECG leads). IC Role / Device Role / Timing Role: Isolated power switch with medical-grade current limiting and thermal monitoring; OC signal feeds safety watchdog circuitry. Use Value: Complies with IEC 60601-1 leakage current limits, prevents accessory-induced system resets, and supports fail-safe power-down on disconnect. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power-switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDBVR | Same HVSSOP-5 package; 0.5 A rating, 130 mΩ rDS(on), no OC pin, no thermal shutdown. | Lacks fault reporting and thermal protection; suitable only for low-risk, low-current loads where simplicity outweighs safety. | Select when cost and board space are critical, and load fault risk is negligible (e.g., LED biasing). |
| TPS22945DCKR | SC70-6 package; 2 A rating, 44 mΩ rDS(on), 1 µA quiescent current, no OC pin, no thermal shutdown. | Higher current capability but no fault visibility or thermal protection; requires external monitoring for safety-critical use. | Choose for higher-current, space-constrained designs where external fault management is already implemented. |
Compared with TPS2051BDBVR and TPS22945DCKR, the TPS2061DGN uniquely combines integrated OC reporting, thermal shutdown, and accurate current limiting in a single-channel HVSSOP-8 package-enabling self-protecting power delivery without external components or firmware overhead.
Availability
TPS2061DGN is available at Aetrix Electronics and suitable for USB port protection, industrial I/O module power control, and embedded system hot-swap applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2061DGN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in power management ICs.
The TPS206x family was designed specifically for robust, current-limited power distribution in USB-compliant and industrial hot-swap systems-emphasizing fault resilience, low EMI, and seamless integration with microcontroller-based control.
FAQ
What is the enable logic polarity for TPS2061DGN?
The TPS2061DGN uses active-high enable logic: a logic high voltage ≥2.0 V on the EN pin turns on the internal MOSFET, while a logic low ≤0.8 V disables it. This matches standard CMOS/TTL interface levels and simplifies direct connection to microcontroller GPIOs without level-shifting.
Does TPS2061DGN support reverse current blocking?
Yes, the TPS2061DGN implements true high-side N-channel MOSFET switching with body-diode orientation that blocks reverse current flow from OUT to IN. This prevents backfeeding between power domains-a critical requirement in multi-rail systems and USB OTG applications.
What thermal performance can be expected from TPS2061DGN in HVSSOP-8?
In the DGN package with proper PCB thermal vias and 1-in² 2-oz copper pour under the PowerPAD™, the TPS2061DGN achieves RθJB = 35.5°C/W. At 1 A and 70 mΩ, power dissipation is ~70 mW, resulting in <3°C junction-to-board temperature rise-well within the -40°C to +85°C ambient rating.
How does the OC pin behave during startup and fault recovery?
The OC pin remains high-impedance during power-up until valid input voltage is established and UVLO exits; it asserts low only after current limit or thermal shutdown activation. Recovery is automatic: OC returns high-Z once fault clears and junction temperature drops below 125°C, with no external reset required.
Can TPS2061DGN operate reliably at 2.7 V input?
Yes-TPS2061DGN is fully specified down to 2.7 V: rDS(on) remains ≤150 mΩ, current limit stays within 1.1–2.1 A, and rise time is 0.4–1.0 ms. The internal charge pump ensures sufficient gate drive even at minimum VIN, making it suitable for single-cell Li-ion or wide-input industrial supplies.
TPS2061DGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Last Time Buy
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2061DGN FAQ
1.How can I place an order for TPS2061DGN through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2061DGN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS2061DGN reliable?
The price and inventory of TPS2061DGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2061DGN is usually 5 days.
3.What payment methods are accepted for TPS2061DGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2061DGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2061DGN?
TPS2061DGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2061DGN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS2061DGN?
For technical support, including TPS2061DGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2061DGN requirements.
6.How does Aetrix verify that TPS2061DGN is sourced from the original manufacturer or authorized distributors?
All TPS2061DGN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS2061DGN meets industry standards.
7.What is the process for return or replacement of TPS2061DGN?
All TPS2061DGN units undergo pre-shipment inspection (PSI). If there is an issue with TPS2061DGN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS2061DGN part is unused and in its original packaging.
Return procedure for TPS2061DGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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